Classification
700 - The arts; fine & decorative arts
3
000 - Computer science, information & general works
2
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
600 - Technology
2
620 - Engineering & allied operations
2
304 - Factors affecting social behavior
1
500 - Natural sciences & mathematics
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
610 - Medicine & health
1
630 - Agriculture & related technologies
1
770 - Photography, photographs & computer art
1
900 - History & geography
1